Research status of joining between graphite and metals

Joining of graphite to metal is an effective way to achieve superior material performance. Firstly, technical requirements and difficulties of graphite and metal joining was introduced. Following that, research progresses in the brazing and diffusion welding of graphite and aluminum alloys, copper alloys and other alloys were summarized. The mechanism of achieving effective metallurgical bonding between graphite and metal through brazing and diffusion welding, especially, the role of active brazing materials in the brazing process and the related wettability were deeply explored. Furthermore, joining properties of graphite to metal were briefly introduced. Finally, current problems and future development direction of brazing and diffusion welding technology were presented, which provided theoretical basis and technical support for further in-depth research and engineering applications.